Cliff Giants can be found in Feralas. Cliff Giants like other giants of Azeroth are supposedly created by the Titans to protect Azeroth. Cliff Giants metabolism works with crystalite, a substance goblins and gnomes hold in value for it´s high combustibility. Crystallized Note (dropped by the giants) tells of a Blood Elf that was eaten by a Cliff Giant. "As my body slowly crystallizes, I recall my days in Eversong".